A ground based satellite laser ranging system has been developed at the Institute of Geodesy and Geoinformation (GGI), University of Latvia in cooperation with a Riga municipality surveying company, Rigas GeoMetrs SIA The original small size telescope mount is based on the 70 cm broad firewall of the 150 year old University building. The first satellite ranging test results of the completed SLR system were unsuccessful. The modification was completed in early 2009 The transmitting and receiving paths were separated. Optical efficiency of both was improved. Additionally, the GNSS 5 base station network is developed in an area covering Riga city. The central base station and analysis center are located close to the SLR site.